Solo
Milltown
Sugar Mill
Skipping the event
Ordered from easiest/most preferred to hardest/last resort
Propane tank
TODO
Oxygen tank
Using Silent's method makes using an oxygen tank in place of propane extremely free. But if you don't know what you are doing, you are pretty much just praying for good pellet spread.
Bile
(TODO) Using a bile as a backup isn't hard, it's just slow and potentially dangerous.
Hops
(TODO) Hops are basically a last resort. High chance of taking substantial fall damage or dying.